Waller informs Diggle that Lyla (guest star Audrey Marie Anderson) has gone missing after following a lead on Deadshot (guest star Michael Rowe) in Moscow.

When Diggle tells the team he’s headed to Russia to rescue Lyla, Oliver (Stephen Amell) and Felicity (Emily Bett Rickards) decide to join, but things get messy when Isabel (guest star Summer Glau) shows up on the tarmac and insists on joining Oliver’s “work trip.”

If you're anything like us, you're constantly bugging your TV-watching buddies to tell you "what happens next". But let's face it, they probably don't know either. Here at Spoilers Guide, we're all about blogging spoilers and know-how for the most popular series on TV. We aim to familiarize fans with upcoming story arcs and exclusive info before it even hits your small screen.